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Updated: Jul 3, 2026
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Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication
Published on: February 6, 2019
Effects of alcohol on inhibitory processes
Abigail K Rose1, Theodora Duka
1Department of Psychology, School of Life Sciences, University of Sussex, Falmer, Brighton, UK.
Behavioural Pharmacology
|July 16, 2008
Summary
A moderate alcohol dose impaired inhibitory control on the Stroop task but not response inhibition on the go/no-go task. Alcohol stimuli captured more attention, suggesting heightened salience for social drinkers.
Area of Science:
- Neuroscience
- Psychology
Background:
- Alcohol consumption is known to affect behavior, potentially through disinhibition.
- Understanding alcohol's impact on inhibitory processes is crucial for social drinkers.
Purpose of the Study:
- To investigate the effects of a moderate alcohol dose on inhibitory control related to alcohol stimuli.
- To examine alcohol's influence on interference inhibition and response inhibition.
- To assess alcohol's impact on working memory.
Main Methods:
- Two studies were conducted with moderate-to-heavy social drinkers (student population).
- Participants received a moderate alcohol dose (0.6 g/kg) or placebo.
- Inhibitory processes were assessed using the Stroop task (ST) and the go/no-go task (GNG).
- Working memory function was also evaluated.
Main Results:
- Alcohol consumption led to more errors on the Stroop task (color and alcohol stimuli) compared to placebo.
- Response latencies on the go/no-go task were slower for alcohol-related pictures than neutral ones.
- No significant effects of alcohol were observed on working memory tasks.
- Interference inhibition on the ST was the only inhibitory process significantly affected by alcohol.
Conclusions:
- Moderate alcohol intake has limited effects on inhibitory processes, primarily impacting interference inhibition.
- Alcohol-related stimuli appear more salient, attracting greater attention in social drinkers.
- While response inhibition was not directly impaired, increased attention to alcohol cues warrants further investigation.
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